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SKF NRT850A bearing

Bearing NRT 850 A Bearing NRT 850 A

The major players, INA/FAG, SKF and Timken all manufacture in China and have top notch quality control, so those bearings should be the same quality as those made here and in Europe. Timken is the only major I know of that imports Chinese bearings, so if you see an SKF or FAG with Chinese markings on it, be suspect.

Axial-radial cylindrical roller bearings, super-precision NRT 850 A

Bearing number : NRT 850 A

Size (mm) : 850x1095x124

Brand : SKF

Bore Diameter (mm) : 850

Outer Diameter (mm) : 1095

Width (mm) : 124

Bearing dimensions and specification in SKF catalogue:

d - 850 mm

D - 1095 mm

H - 124 mm

d1 - 1018 mm

C - 37 mm

H1 - 80.5 mm

J - 890 mm

J1 - 1055 mm

H - 18 mm

N1 - 26 mm

N2 - 18 mm

a - 17 mm

r1 - min. - 1.5 mm

r2 - min. - 1.5 mm

Basic dynamic load rating, radial direction - C - 473 kN

Basic static load rating, radial direction - C0 - 2120 kN

Basic dynamic load rating, axial direction - C - 415 kN

Basic static load rating, axial direction - C0 - 6400 kN

Limiting speed for grease lubrication - 40 r/min

Limiting speed for oil lubrication - 80 mm/min

Axial Preload - 47 N

Axial unloading force - 103 kN

Frictional moment - CRL - 300 N·m

axial stiffness - 77 N/micron

radial stiffness - 22.4 N/micron

Moment stiffness - 7011000 kN·m/mrad

Mass bearing - 253 kg

Guideline diameter - 1800 mm

Size - G - M16

Number of bolts - 6

Angle between bolts - 60 °

Size bolts - M16

Pitch - &alfa; - 6 °

Number of bolts - 54

Number of bolts omitted at removal thread position - 6, 60° apart

Size bolts - M16

Pitch - &alfa; - 6 °

Number of bolts - 58

Number of bolts omitted at retaining bolts position - 2, 180° apart

Tightening torque - 284 N·m

Size - M16

Number of bolts - 2

Bearing NRT 850 A Bearing NRT 850 A